Portable telephone



FIG. 1 is a perspective view of a portable telephone;

FIG. 2 is a front view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a rear view thereof;

FIG. 8 is a front view of an opened position thereof; and,

FIG. 9 is a perspective view of the view shown in FIG. 8.

The broken line showings in the drawing are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a portable telephone, as shown. 